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 Replies: 11 / Views: 1,468 |
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Valued Member
United States
128 Posts |
I would like to see what others think about the date doubling shown in the picture. Thanks.  |
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Moderator
 United States
14463 Posts |
I am guessing damage, since the devices are reduced in size  |
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Valued Member
United States
434 Posts |
I believe that is Machine Doubling on the date. The doubled part is flat and shelf like. It's a neat coin though, and is a wheat. A genuine doubled die would have the doubled area raised. There may be something going on with the mintmark though. Sometimes they punch the mintmark on more than once, that is called a Re-punched Mintmark or RPM. Someone with more knowledge could let you know if it's an RPM. |
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Moderator
United States
56855 Posts |
Looks like a type of MD,ejection doubling? John1  |
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Pillar of the Community
United States
1602 Posts |
MD. Didn't we just see the same coin sometime in the past week?
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Rest in Peace
United States
17900 Posts |
It does look like MD, but it's still a neat one. It only costs a cent to keep it.
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Bedrock of the Community
United States
62064 Posts |
Note how the devices are reduced on a MD 1957 cent:  Note that the coin was not doubled, but actually reduced part of the upper digits on the date. |
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Valued Member
 United States
128 Posts |
That's a great image. It provides more than a thousand words when it comes to explaining "Machine Damage". My gut tells me, however, that John1 got it right this time; for I see this example as better explained by "ejection damage". Do you agree?
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Valued Member
United States
288 Posts |
It looks as if all of the pressure was coming from the 11 o'clock direction and pushed the edges in to reduce the size of the devices.
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Bedrock of the Community
United States
62064 Posts |
It is Die movement during the strike as part of the bounce of the strike. Ejection doubling affects the tops of devices on just one side.
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Valued Member
United States
128 Posts |
Thanks Coop, I appreciate the follow-up. Do you have any good images that show "ejection damage"? I'd like to see them if you do, to understand it better. Thanks.
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Bedrock of the Community
United States
62064 Posts |
Here are a couple:   You can see where the coin hit something on the way out of the chamber. |
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Replies: 11 / Views: 1,468 |
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Posted 01/15/2016 02:13 am
